If you want to work on '''computer-aided design (CAD), geometry, or graphics''', you've come to the right place! Help us improve open source CAD.

If you want to work on '''computer-aided design (CAD), geometry, or graphics''', you've come to the right place! Help us improve open source CAD.

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Well prepared proposals have an ''outstanding'' chance here. We consider proposals for all skill levels ranging from simple to crazy hard and everything in between. [https://lists.sourceforge.net/lists/listinfo/brlcad-devel Introduce yourself], and we'll help you plan one right for you.

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Well prepared proposals from capable students have an ''outstanding'' chance of getting selected. We consider proposals for all skill levels ranging from simple to crazy hard and everything in between. [https://lists.sourceforge.net/lists/listinfo/brlcad-devel Introduce yourself], and we'll help you plan one right for you.

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We plan on selecting 6-12 students to work on web projects, C/C++ projects, and more. This year, BRL-CAD is coordinating with three other communities that will get 1-2 students each to help bridge our work and encourage collaboration. Projects that help exchange data or share code are desired!

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Remember that project descriptions are just ''initial ideas''. You must expand with [[Summer_of_Code/Application_Guidelines|considerably more detail]]. Change the goals to fit your experience and interests. See our '''[[Summer_of_Code/Checklist|checklist]]''' to get started.

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{|align="center" width="62%"

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This year, BRL-CAD is coordinating with five other communities that will get 1-2 students each to help bridge our work and encourage collaboration. Projects that help exchange data or share code are desired!

|colspan=2 align="center" |Under development for 30+ years, it's big, it's complicated, it's powerful. BRL-CAD will consider just about any project that relates to computer graphics or existing infrastructure.

|align="center"|'''FreeCAD''': parametric 3D modelling with strong Python interface and general engineering functionality like FEM and CAM

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'''Unless there isn't a quality proposal, we intend to select at least one student for each of BRL-CAD's main categories as well as at least one student each for OpenSCAD, LibreCAD, and STEPcode.'''

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Remember that project descriptions are just ''initial ideas''. You must expand with [[Summer_of_Code/Application_Guidelines|considerably more detail]]. Change the goals to fit your experience and interests. See our '''[[Summer_of_Code/Checklist|checklist]]''' to get started.

'''Project titles link to a page with more details.'''

'''Project titles link to a page with more details.'''

= BRL-CAD Projects =

= BRL-CAD Projects =

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== High Priority Topics ==

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{| bgcolor=#fff width=100%

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!

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!align=center|Languages

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!align=center|Difficulty

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!align=center|Contacts

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|align=left width=62%|'''[[Convert MGED from Tk to Qt]]:''' Transition BRL-CAD's graphical applications from the Tk toolkit to the Qt toolkit.

|width=62%|'''[[Rework of libbu/libbn to not require Tcl]]:''' Tcl's '''''C API''''' is used throughout BRL-CAD providing great abstractions, but we want our basic utility and numeric libraries (LIBBU & LIBBN) to stand alone.

|width=62%|'''[[GED Transactions]]:''' Migrating functionality from our MGED geometry editor into our LIBGED library provided excellent code reuse, but now we need transactions so that actions can be undone.

|width=62%|'''[[GED Transactions]]:''' Migrating functionality from our MGED geometry editor into our LIBGED library provided excellent code reuse, but now we need transactions so that actions can be undone.

|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#issue-handling Issue Handling]:''' Day-to day issue and community management, fix incoming and existin issues. Good place to get started.

|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#issue-handling Issue Handling]:''' Day-to day issue and community management, fix incoming and existin issues. Good place to get started.

|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#test-framework-improvements Test Framework Improvements]:''' Improve tests and test framework. Good place to get started.

|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#test-framework-improvements Test Framework Improvements]:''' Improve tests and test framework. Good place to get started.

|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#larger-tasks-for-particularly-experienced-people Larger tasks for particularly experienced people]:''' Various harder tasks which are not fully specified and requires significant effort to design and implement.

|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#larger-tasks-for-particularly-experienced-people Larger tasks for particularly experienced people]:''' Various harder tasks which are not fully specified and requires significant effort to design and implement.

|width=62%|'''http://wiki.librecad.org/index.php?title=GSoC_2014:''' LibreCAD is a popular 2D CAD tool but is based on a old (10 years old) codebase that is hard to add features to. LibreCAD 3 aim's to completely rewrite LibreCAD in different different libraries to make coding against librecad easer.

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|width=62%|'''[[LibreCAD 3 UI]]:''' Add GUI support for drawing and editing actions to start exposing it to end users.

|width=62%|'''StepConf improvements ([https://sourceforge.net/p/emc/feature-requests/60/], [https://sourceforge.net/p/emc/feature-requests/58/], [https://sourceforge.net/p/emc/feature-requests/57/]):''' StepConf is a gui that helps people configure LinuxCNC for many kinds of common machines. It has some missing features that should be easy to add.

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|width=62%|'''Conditional G-code and arithmetic expressions parser:''' Implement a grammar parser for conditional and arithmetic expressions within custom G-code, maybe using Boost.Spirit or some other library. [https://github.com/alexrj/Slic3r/issues/3390 #3390]

|width=62%|'''Add flow control to halstreamer ([https://sourceforge.net/p/emc/feature-requests/125/]):''' The userspace program [http://linuxcnc.org/docs/html/man/man1/halstreamer.1.html halstreamer] and its realtime companion [http://linuxcnc.org/docs/html/man/man9/streamer.9.html streamer] make up a utility for moving arbitrary data into the realtime core of LinuxCNC. It currently streams data at maximum rate, and it would be good to add flow control.

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|width=62%|'''Port the GUI to C++:''' The GUI is currently coded in Perl using wxWidgets and our goal is to have it ported to C++. The wxWidgets API is almost identical between Perl and C++, so it's an easy task. There are a couple things where we use the dynamic features of Perl which are trickier and interesting to port.

|width=62%|'''Port the SVGNest library to C++:''' The SVGNest library provides an algorithm for polygon nesting. It's written in JavaScript and a C++ port of it would improve Slic3r's auto-arrange feature. [https://github.com/alexrj/Slic3r/issues/3237 #3237]

|width=62%|'''Fix bugs of the Boost.Voronoi library:''' The good but unmaintained Boost.Voronoi library has a couple minor issues affecting Slic3r's results. Interesting task for learning the Voronoi algorithm and how to troubleshoot a computational geometry issue. [https://github.com/alexrj/Slic3r/issues/2948 #2948]

|width=62%|'''Refactor the TriangleMesh class and support non-solid walls:''' Replace the internal mesh representation (currently based on admesh) using an existing 3D mesh library or implementing a half-edge structure; only use admesh for fixing models. Keep non-solid walls and slice them as single paths. Bonus: import SVG paths and position them freely using the GUI for printing as single extrusions. [https://github.com/alexrj/Slic3r/issues/3560 #3560] [https://github.com/alexrj/Slic3r/issues/3523 #3523]

|width=62%|'''Support surface colors and mixing extruders:''' Read surface colors from AMF or OBJ and keep them throughout the slicing process in order to generate G-code for mixing extruders. [https://github.com/alexrj/Slic3r/issues/3546 #3546]

|width=62%|'''Write a Slic3r plugin for Grasshopper:''' Expose Slic3r functionality as many separate components that can be plugged in larger GH definitions (for example: slice a NURBS model in GH and feed the slices to the toolpath generation process in order to skip mesh generation, or provide flow calculation for people driving 5-axis robots with custom motion). This requires a fair amount of design work.

|width=62%|'''[http://www.freecadweb.org/wiki/Advanced_FreeCAD_test_system Advanced FreeCAD test system ]''': Create a framework for result file based comparisons and workbench specific comparators. Also creation of test cases should be simplified by a GUI or wizard.

|width=62%|'''[http://www.freecadweb.org/wiki/Topological_Naming_Project Topological Naming Project]''': Implementation of subshape identifiers based on creation history and update of topology class to work with those identifiers.

|width=62%|'''[http://www.freecadweb.org/wiki/Direct_modeling_tools Direct modeling tools]''': Create a new layer of tools and objects, that work on top of existing Part-based 3D objects, that allow a user to graphically modify their geometry.

|width=62%|'''[http://www.freecadweb.org/wiki/FEM_Post_Processing_based_on_VTK FEM Post Processing based on VTK]''': Base the existing FEM VTK post processing on the updated SMESH data structure and design a python interface for it. Also improve integration into the workbench.

|width=62%|'''[http://www.freecadweb.org/wiki/IPython_notebook_integration IPython notebook integration]''': Create a way to export the open inventor scenegraph as a JavaScript file and add functions for seamless interaction with the IPython display system

Phase 3 - '''[https://www.freecadweb.org/wiki/Give_graphical_access_to_a_wide_range_of_available_ElmerSolver_setting_from_within_FreeCAD Give graphical access to a wide range of available ElmerSolver setting from within FreeCAD]'''

|width=62%|'''[https://www.freecadweb.org/wiki/PartDesign_Updates PartDesign Updates]''': Finish PartDesign port to new Body object, simplify the workflows and extend tools while making them more robust.

|width=62%|'''[https://www.freecadweb.org/wiki/GSoC_Path/Robot_Integration GSoC Path/Robot Integration]''': Path is the CNC/CAM workbench. It currently lacks any simulation capability. Robot workbench is a tool for simulating industrial robots. Extend Path and Robot workbenches to support simulation of CNC operations in the Robot workbench.

Revision as of 16:19, 6 March 2017

If you want to work on computer-aided design (CAD), geometry, or graphics, you've come to the right place! Help us improve open source CAD.

Well prepared proposals from capable students have an outstanding chance of getting selected. We consider proposals for all skill levels ranging from simple to crazy hard and everything in between. Introduce yourself, and we'll help you plan one right for you.

Remember that project descriptions are just initial ideas. You must expand with considerably more detail. Change the goals to fit your experience and interests. See our checklist to get started.

This year, BRL-CAD is coordinating with five other communities that will get 1-2 students each to help bridge our work and encourage collaboration. Projects that help exchange data or share code are desired!

Advanced Sketch Primitive Editor: BRL-CAD has a 2D sketch primitive, but our handling of editing sketches doesn't incorporate parametric constraints. There are potentially applicable codes in the open source community we can leverage for this, or we can roll our own solution.

<An Idea of Your Own>

Do you have an idea of your own? Maybe you need more ideas to inspire you? We're very open to areas of academic research, industry applications, and ideas that get you hooked on open source CAD development.

Requirements:

Passion for the task being suggested

OpenSCAD Projects

OpenSCAD is a parametric solid 3D modeling tool which uses a Domain Specific Language to specify designs as plain text. It is specifically designed with 3D printing in mind.

The OpenSCAD team is also open to new ideas. Please get in touch to discuss your ideas and convince a mentor to back it.

LibreCAD Projects

LibreCAD is a free Open Source CAD application for Windows, Apple and Linux. Support and documentation is free from our large, dedicated community of users, contributors and developers.
Please refer to LibreCAD GSoC 2015 ideas for more detailed description.

Languages

Difficulty

Contacts

LibreCAD 3 UI: Add GUI support for drawing and editing actions to start exposing it to end users.

STEPcode Projects

Languages

Difficulty

Contacts

STEP Coverage Test: Write a program that links against STEPcode and generates a STEP output instantiating every entity for a given schema. Goal is a comprehensive program and data file for testing STEP import/export.

STEP Source Code Documentation: We already use doxygen, but could do much better. Improve code documentation and utilize additional doxygen features such as topic pages. Add a 'make doxygen' target to invoke doxygen.

STEP Viewer: STEP is a common CAD file format supported by just about every major CAD system. Given we have an importer and an interface for displaying geometry, a stand-alone STEP file viewer has some great potential.

Port the GUI to C++: The GUI is currently coded in Perl using wxWidgets and our goal is to have it ported to C++. The wxWidgets API is almost identical between Perl and C++, so it's an easy task. There are a couple things where we use the dynamic features of Perl which are trickier and interesting to port.

Fix bugs of the Boost.Voronoi library: The good but unmaintained Boost.Voronoi library has a couple minor issues affecting Slic3r's results. Interesting task for learning the Voronoi algorithm and how to troubleshoot a computational geometry issue. #2948

Refactor the TriangleMesh class and support non-solid walls: Replace the internal mesh representation (currently based on admesh) using an existing 3D mesh library or implementing a half-edge structure; only use admesh for fixing models. Keep non-solid walls and slice them as single paths. Bonus: import SVG paths and position them freely using the GUI for printing as single extrusions. #3560#3523

Write a Slic3r plugin for Grasshopper: Expose Slic3r functionality as many separate components that can be plugged in larger GH definitions (for example: slice a NURBS model in GH and feed the slices to the toolpath generation process in order to skip mesh generation, or provide flow calculation for people driving 5-axis robots with custom motion). This requires a fair amount of design work.

GSoC Path/Robot Integration: Path is the CNC/CAM workbench. It currently lacks any simulation capability. Robot workbench is a tool for simulating industrial robots. Extend Path and Robot workbenches to support simulation of CNC operations in the Robot workbench.

Mentors

BRL-CAD operates under group mentorship. That means you can contact anyone, not just the person assigned to you, for assistance. The mailing list and IRC channel are the preferred communication methods.